Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 315

Processing details
• These instructions perform an OR operation (bit-by-bit) on the 16-bit binary data in the device specified by (s1) and the 16-
bit binary data in the device specified by (s2), and store the operation result in the device specified by (d).
b15 ∙∙∙
(s1)
1 1 0 0 0 0 0
∙∙∙
b15
(s2)
0 0 0 0 1 1 0
∙∙∙
b15
(d) 1 1 0 0 1 1 0
• When a bit device is specified, the instruction performs an operation by assuming that the ones after the number of digit-
specified points are 0.
Operation error
There is no operation error.
b8 b7 ∙∙∙
0 1 1 1 1 0 0 0
OR
∙∙∙
b8 b7
0 1 1 0 0 0 0 1
∙∙∙
b8 b7
0 1 1 1 1 0 0 1
b0
0
b0
1
b0
1
6 BASIC INSTRUCTIONS
6.3 Logical Operation Instructions
6
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